Force-feed oiling system



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G- L.. WAHL FORCE FED'OILING SYSTEM Filed July 14 1921 2 Sheets-Sheet 1Jun@ im, m23. M594@ G. L. WAHL.

FORCE FEED OILING SYSTEM Filed July 14. 1921 2 SheetS-Sheei'l 2 Patented...lune 19, 1923.

GEORGE L. WAHL, 0F `MINNEAPOLIS MINNESQTA.

FORCE-.FEED OILING SYSTEM.

Application led July 14, 1921. Serial No. 484,620.

Oiling Systems; and I do 'hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates articularly to oilin systems for automo pe ledvehicles, and is of that general type wherein the grease or oil isforced under pressure from a common supply source to various dierentbearings, journals and the like through individual delivery pipes.

In certain of these oiling systems, there is a pump or force feeddevice, operative at will or otherwise to simultaneously deliver, underpressure, the grease or oil torseveral different bearings or journals.Such systems have 'been found defective in frequently the oil or greasewill harden in one of the delivery pipes or at its place of discharge,so that a force produced in the pump or force feed device will not bee'ective to force a discharge through such delivery pipe but willproduce an excessive discharge through the other pipe or pipes where theresistance is less.

As a. salient feature of this invention, I provide a distributor fromwhich the several individual delivery pipes vor tubes are extended, andprovide a distributor valve, by manipulation of which any one of thedelivery pipes may be opened for discharge, at will, while the otherdistributor pipes are closed orcut o' from the pressure produced in thedistributor from the pump or force feed device. This providesmeans'whereby any plugged delivery pipe may be opened up and the oil orgrease forced therethrough by increasing the pressure in the distributoruntil it is suilicient to accomplish the object stated.

A commercial form of the oiling system is illustrated in theaccompanyingdrawings, wherein like characters indicate like partsthroughout the several views.

Referring to the drawings:

Fig. 1 is a side elevation with sonne parts broken away showing thelubricating or oiling system applied to an automobile, some being7er-olsen ewa have invented certain new and useful Improvements mForce-Feed iles or motor-prothis, that Fig. 2 is a fragmentary planwith' some parts broken away and some removed, further illustrating themanner in which the oiling system is applied to the car;

Fig. 3 is a detail partly in plan and partly in horizontal section,illustrating the manner in vwhich one of the oil delivery pipes or tubesis connected to one ofthe shackle bolts;

Fig. 4 is an enlarged fragmentary vertical section taken approximatelyon the line 4 4 oi Fig. 2;

ig. -5 is a vertical section taken approximately on the line 5 5 of Fig.4; Y l. FFig. 6 is a sectionon the line 6 6 of Fig. 7 is a verticalsection taken on the line 7 7 of Fig. 1, some parts being shown in fulland so'me being broken away and particularly illustrating theconstruction of the so-called oil distributor;

Fig. 8 is a plan view of the distributor shown in Fig. 7; and A Fig. 9is a horizontal section taken approximately onthe irregular line 9 9 ofFig. 7.

Of the parts of the automobile, it is desirable for the purposes of thiscase to particularly note only the following parts, towit: The body 1 0,rearl wheels 11, front wheels 12, main frame 13, rear springs 14,

rearspring shackle bolts 15, front springs 16, fenders 17 and the floor18 of the body 10. The pump or force feed device comprises a cylinder 19and a piston 20 working therein. This cylinder 19 is preferablyhorizontally disposed and rigidly hung from and below the Hooring 18 bybrackets 21. For filling the cylinder 19 withl oil or lubricatinggrease, it is shown as provided' near its receiving end with anupstanding iller neck 22 normally closed by a cap 23. The piston .20 isheld against rotation by guide rods 24 extended within andlongitudinally of the cylinder 19, and rigidly secured to one head'thereof and to a false head 25. rlhe false head 25, (see Fig. 6), haso'ne or more large oil passages 26.

The numeral 27 indicates a feed screw that is extended axially throughthe cylinder 19, is swiveled in the front head and in the false head 25thereof and has threaded enga-gement with the hub of the piston 20.sothat the latter will be moved by rotation thereof. A ratchet wheel 28is rigidly secured to the outer end of the feed screw 27 and is sublject to a traveling dog or pawl 29 carried by suitably connected to thefree end of the ing 18 or other relatively fixed lever 30 and the upperend thereof, above the flooring, has a head or foot piece 33. coiledspring 34, (see Fig. 5), reacts against the bracket 32 and against awasher 35 that is fixed to the plunger 31. Thus, the spring 34 normallyholds the plunger 31 raised, as

indicated by dotted lines in Fig. 5.

' The delivery end of the cylinder 19 is conl nected by a feed pipe 36,to one end, as shown, the lower end, o the cylindrical casing 37 of theoil distributor, (see Figs. 4 and 7, and also Fig. 1). This casing 37 islocated below but rigidly supported from the floor- I part of thevehicle body, and'rot'ativel working within the same is a cylindricaldistributing valve 38 that is open at its lower end but provided with ahead at its upper end, which, as shown, works closely against adetachable cylinder head 39applied to the upper end of the casing 37.The headI of the valve 38 is rigidly connected to a small axial bolt 40that is rotatively mounted in the head 39 and is provided above thelatter with an arm 41 b means of which the valve 38 ma be turne toand'set in any one o severa or many dierent positions. As

shown, the head 39 is provided with posif tion marks 42 spacedequi-distant and being twelve in number,

Leading from distributor casing delive pipes or the upper portion of the37 are six individual oil tubes 43and, extending from. t e lower portionthereof, are four similar delivery pipes or tubes Of course, these pipesmay .vary in number, but, as shown, they are rogressively spaced so thatone of the twe ve pipes extends radially from a position indicated byoneof the twelve position marks42.

With the above arrangement, it is evident that when the arm 41 isaligned With one of the marks 42, aradial port 45 in the upper portionof the valve 38 will be in registration with one or the other oftheindividual ipes 43, or a lower port 46 in said valve will be inregistration with one or the other of the..lower pipes 44, but at notime will any two of the said twelve individual ipes be open to the.interior of the cylindrica casing 37 0f course, the valve 38 can be setat an one of several there y closing all of the ypipes 43 and 44 Thelower end of this plunger 31 is A. and a coupling 44h.

lthe dog and ratc intermediate positions,

intense off from communication with. .the distributor. l p

vThe several individual pipes 43 and 44 will be connected to dierentbearings, journals or the like by suitable connections, but in Fig. 3 1have shown one ofthe pipes 44 connected tov one of the rear springshackle bolts 15, through a iexible pipe section 44a All of saiddelivery pipe connections will be constantly lmaintained so that thesupply of oil at the different points of delivery may be controlledentirely by the distributing valve 38. y Very high pressure of the oilor lubricating material, within the distributor 37, can be produced byfoot power applied to the head 33 o'f the plunger 31. For 'ordinarypurposes, very high pressure will not be required, but if a pipe shouldbe plugged, the power for producing the desired pressure may be producedby exerting, if necessary, the full weight'of the operator on the drivinplunger. 'i 1 f hen the plun er 31 is forced downward,

et device 29-28 will impart one step of rotary movement tothe feed screw27, which will impart a slight outward movement to the iston 20, therebycrowdmg cylinder 19, through the pipe 36 and into cated.

Of course, extreme position when the piston has reached its toward theright in respect to Fig. 4, the screw 27 must be rotated backward so asto restore the piston to its initial position, and the cylinder 19 mustthen be again filled.

From what has been said, it'will be understood that the mechanismdescribed and illustrated in the drawings may be modiiied in manyrespects, all within the Spirit of my invention as herein disclosedand'claimed.

What l claim is:

A force feed deviceincluding a cylinder and a cooperating` piston, afeed screw extending into said cylinder and operative on the piston, aratchet wheel applied to the outer end of the feed screw, a dog-equippedlever operative on the ratchet wheel, and manuallyactuated means forreciprocating said lever, in combination with a distributor vhaving afeed pipe connected to the cylinder and having a plurality of individualoil delivery tubes, anda distributing valve in are closed.

1n testimonyv whereof I aix my signature.

GEGRGE L. WAHL.

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